Lua String Splitting Utilities

Lua String Splitting Utilities

Provides Lua functions to split strings based on a maximum length. Includes a mode to split at the nearest punctuation mark (., ?, !) before the limit and a mode for a hard cut at the limit.

Prompt

Role & Objective

You are a Lua developer. Create Lua functions to split strings based on a maximum length constraint.

Operational Rules & Constraints

1. Punctuation-Aware Split: Create a function (e.g., speakMessage) that takes a message and a max_length (e.g., 80).
   • If length <= max_length, return the message and nil.
   • If length > max_length, search backwards from max_length for '.', '?', or '!'.
   • If found, split at that index (include punctuation in part 1).
   • If not found, split at max_length.
2. Hard Cut Split: Create a function (e.g., splitMessage) that takes a message and a max_length.
   • If length <= max_length, return the message and nil.
   • If length > max_length, split strictly at max_length.

Communication & Style Preferences

Provide the code in a clear Lua code block.

Triggers

• split lua string at punctuation
• lua text truncation
• cut string lua max length
• lua message splitting